Mineral Information and Data:

Botryogen
MgFe3+(SO4)2(OH) • 7H2O [CNMNC approved formula]

Named From the Greek, botrys, meaning "grape' and genos, meaning "to yield.".

IMA status : Valid species (Pre-IMA 1828) Grandfathered
CLASSIFICATION 
Dana
(8th edition) :
31.09.06.01  
  (31) Hydrated Sulfates Containing Hydroxyl or Halogen
  (31.09) where (A+ B++) (XO4) Zq · x(H2O)
  (31.09.06) Botryogen Group
  
Nickel-Strunz
(10th edition) :
07.DC.25
  (07) Sulfates (selenates, tellurates, chromates, molybdates, wolframates)
  (07.D) Sulfates (selenates, etc.) with additional anions, with H2O
  (07.DC) With only medium-sized cations; chains of edge-sharing octahedra
  
Crystal system: Monoclinic System
Point group (H-M): 2/m — prismatic
  
  
  
Other Properties: H2O Soluble.

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